Real-time Audio Processing for Android

The goal of the project is to implement speech processing algorithms (WSOLA / Phase Vocoder) as Android application that helps people with stuttering. The application was designed to improve user’s speech fluency. Two effects were implemented:
DAF - Delayed Auditory Feedback: user hears his own voice with a short time delay.
FAF - Frequency Auditory Feedback: user hears his own voice with a frequency change.
These effects lead to stuttering reduction among some of the stutterers.